/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionReflectionVectorWS.h
class UMaterialExpressionReflectionVectorWS : public [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression)
uint32:  1
bNormalizeCustomWorldNormal
(true): The specified world normal will be normalized.
FExpressionInpu...
CustomWorldNormal
Optional world normal to reflect the camera view vector about. If unconnected, pixel normal is used